The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 1999
Filed:
Jan. 26, 1998
Heinz Langhals, Ottobrunn, DE;
Josef Gold, Pfaffenhofen, DE;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
Perylene-3,4:9,10-tetracarboxylic acid imides of the general formula I, including their optical antipodes and their mixtures, in particular their racemates ##STR1## wherein R.sup.1 to R.sup.14 are identical or different and are hydrogen or a radical selected from the group consisting of an unsubstituted or substituted carbocyclic aromatic radical, an unsubstituted or substituted heterocyclic aromatic radical, halogen, unsubstituted or substituted C.sub.1 -C.sub.18 alkyl, --OR.sup.15, --CN, --NR.sup.16 R.sup.17, --COR.sup.18, --NR.sup.19 COR.sup.18, --NR.sup.15 COOR.sup.18, --NR.sup.15 CONR.sup.16 R.sup.17, --NHSO.sub.2 R.sup.18, --SO.sub.2 R.sup.18, --SOR.sup.18, --SO.sub.2 OR.sup.18, --CONR.sup.16 R.sup.17 --N.dbd.NR.sup.20, --OCOR.sup.18 and --OCONHR.sup.18, where pairs of adjacent radicals can form a carbocyclic or heterocyclic ring,